Ultra-high performance concrete anti-scouring and abrasion structure for bridges

Abstract

The utility model discloses an ultra-high performance concrete anti-scouring and abrasion structure for bridges, and relates to the technical field of bridge pile protection, including piles, wherein a plurality of protective sleeves are sequentially sleeved on the outer peripheral surface of the pile from top to bottom, and the adjacent protective sleeves are fixedly connected at the connection point by a clamp, and a fixed block is fixedly connected to the outer peripheral surface of the upper side of the pile, and the fixed block is rotatably connected to a baffle plate on the side away from the pile through a first rotating shaft and a first torsion spring, and the width of the baffle plate is not less than half of the outer diameter of the protective sleeve. When in use, the baffle plate is driven to rotate by the first rotating shaft and the first torsion spring, so that the baffle plate can face the direction of water flow impact to prevent the water flow from directly impacting the protective sleeve and the pile, and under the elastic force of the first torsion spring, the baffle plate can effectively reduce the impact force of the water flow on the protective sleeve and the pile, thereby effectively protecting the safety of the protective sleeve and the pile, and improving the protection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pile protection, in particular to an ultra-high performance concrete anti-scouring and abrasion structure for bridges. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, and seas to connect the land on both sides so that vehicles, pedestrians, etc. can pass smoothly. The construction of a bridge can avoid the need for vehicles and pedestrians to take detours across rivers, lakes, and seas, greatly shortening the travel time and improving people's travel efficiency.

[0003] A bridge is generally composed of an upper structure, a lower structure, supports and ancillary structures, and the lower structure includes pile foundations and pile columns. The pile foundations are buried in the riverbed, and the pile columns are fixedly connected to the pile foundations to support the upper structure of the bridge. Since the lower part of the pile columns is located in the river water, they will always be eroded by the water flow, and thus weakened by the erosion of the water flow. When they are weakened to a certain extent, it may lead to the inability to reliably support the upper structure of the bridge, resulting in the collapse of the bridge, which seriously threatens the safety of passing vehicles and personnel. Therefore, it is necessary to set an anti-scouring protection structure on the pile columns or pile foundations to prevent them from being eroded, so as to ensure that the bridge can work reliably for a long time.

[0004] The Chinese utility model patent with patent application number CN201822218252.8 records an ultra-high performance concrete anti-scour and abrasion structure for bridges, in which a rotating drum is sleeved on the outside of a protective drum, and a rolling shaft is slidably installed between the protective drum and the rotating drum, so that the rotating drum can slide on the outside of the protective drum, and a rotating shaft is uniformly rotated in the annular groove of the rotating drum, and a rotating roller is fixedly sleeved on the outer periphery of the rotating shaft, and a plastic foam layer is filled inside the rotating roller. The rotating roller is located on the outer periphery of the plastic foam layer and is sleeved with a waterproof rubber layer. The smaller weight of the rotating roller is used when water impacts the pier. When the impact force is too great, it will drive the rotating roller to rotate, which can unload the force. When the impact force is too great, it will also drive the rotating drum to rotate, thereby minimizing the impact force of water on the pier column. When a ship rubs against the pier column during navigation, it will first hit the rotating roller and then unload the force, which will not cause damage to the pier column. The structure is simple and easy to use. However, in the above structure, when the water flow impacts the pier column, the rotating roller will be driven to rotate, and the weight of the rotating roller is small, so the energy consumed to drive it to rotate is low, so it cannot consume and share more water flow impact force, resulting in poor protection effect of the structure on the pier column. Utility Model Content

[0005] The purpose of the present application is to provide an ultra-high performance concrete anti-scour and abrasion structure for bridges to solve the problem proposed in the above-mentioned background technology that the weight of the rotating roller is relatively small, so the energy required to drive it to rotate is relatively low, and therefore it is unable to consume and share more of the impact force of the water flow, resulting in the poor protection effect of the structure on the pier.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an ultra-high performance concrete anti-scour and abrasion structure for a bridge, comprising a pile column, a plurality of protective sleeves are sequentially sleeved on the outer circumference of the pile column from top to bottom, adjacent protective sleeves are fixedly connected at the connection points by clamps, a fixed block is fixedly connected to the upper outer circumference of the pile column, the side of the fixed block away from the pile column is rotatably connected to a baffle plate by a first rotating shaft and a first torsion spring, the width of the baffle plate is not less than half of the outer diameter of the protective sleeve, the bottom of the baffle plate extends to the lowermost protective sleeve, and also includes a support assembly arranged between the baffle plate and the outer circumference of the pile column.

[0007] Preferably, the support assembly is equidistantly fixedly connected to multiple pairs of first elastic support plates on the side of the baffle plate close to the pile column from top to bottom, each pair of the first elastic support plates is distributed in an inverted eight-shaped shape, and the side of the first elastic support plate away from the baffle plate is rotatably connected to a rotating rod through a second rotating shaft, and the rotating rod is in conflict with the outer peripheral surface of the corresponding protective sleeve. The advantage of such an arrangement is that when the baffle plate is impacted by water flow, the first elastic support plates and the rotating rod will be tightly pressed against the outer peripheral surface of the protective sleeve, and each pair of two first elastic support plates will open to both sides, thereby reducing the direct impact force of the water flow on the baffle plate and the protective sleeve, effectively protecting the baffle plate and the protective sleeve from damage, so that the protective sleeve can work normally for a long time to protect the safety of the pile column.

[0008] Preferably, the support assembly also includes multiple groups of second elastic support plates connected equidistantly from top to bottom, each group of the second elastic support plates includes several pairs of second elastic support plates, each pair of the second elastic support plates is distributed in an inverted eight-shaped shape, and each group of the second elastic support plates is located between each pair of the first elastic support plates, and the side of the second elastic support plate away from the baffle plate is rotatably connected to a rotating rod through a second rotating shaft, and the rotating rod can contact the outer peripheral surface of the corresponding protective sleeve. The advantage of such an arrangement is that when the impact force of the water flow is large, multiple pairs of first elastic support plates and multiple groups of second elastic support plates will all participate in the support work of the baffle plate, and multiple rotating rods will simultaneously contact the outer peripheral surface of the protective sleeve, thereby effectively reducing the pressure on the protective sleeve, further protecting the safety of the protective sleeve, and at the same time enabling the structure to resist large water flow impact forces, further improving the anti-scouring and abrasion protection effect of the pile column.

[0009] Preferably, the top surface of the protective sleeve is provided with a plurality of holes in a ring shape at equal angles, and the bottom surface of the protective sleeve is provided with a plurality of rods in a ring shape at equal angles. The plurality of rods can be movably inserted into the plurality of holes respectively. The advantage of such an arrangement is that the connection stability between the protective sleeves can be increased, thereby improving the protection effect on the pile column.

[0010] Preferably, a fixing ring is fixedly sleeved on the outer circumference of the upper side of the pile column, a swivel is rotatably sleeved on the outer circumference of the fixing ring, two connecting plates are symmetrically fixedly connected to the inner wall of the swivel, a plurality of threaded holes are opened on the top of the connecting plate and the top of the fixing ring, the connecting plate and the fixing ring are fixedly connected together by bolts and threaded holes, and two fixing blocks are symmetrically fixedly connected on the outer circumference of the swivel. The advantage of such an arrangement is that two baffles can be symmetrically installed on each pile column, so that the staff can regularly rotate the swivel to swap the positions of the two baffles, so that the two baffles can perform protection work alternately, so as to reduce the probability of damage to the baffles due to fatigue, extend the protection time of the pile column, and greatly improve the reliability of the structure.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, the baffle plate is driven to rotate by the first rotating shaft and the first torsion spring, so that the baffle plate can face the direction of the water flow impact to prevent the water flow from directly impacting the protection sleeve and the pile column, and under the elastic force of the first torsion spring, the baffle plate can effectively reduce the impact force of the water flow on the protection sleeve and the pile column, thereby effectively protecting the safety of the protection sleeve and the pile column and improving the protection effect.

[0013] 2. In the utility model, by setting up multiple pairs of first elastic support plates, multiple groups of second elastic support plates and rotating rods, under the elastic deformation of the first elastic support plates and the second elastic support plates, the baffle plate can effectively consume the impact potential energy of the water flow, thereby further weakening the impact force of the water flow on the protective sleeve and the pile column, greatly improving the protective effect on the impact force of the protective sleeve and the pile column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a first structural schematic diagram of the ultra-high performance concrete anti-scouring and abrasion structure for bridges in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of a first cross-sectional structure of the ultra-high performance concrete anti-scouring and abrasion structure for a bridge in an embodiment of the present application;

[0017] Figure 3 This is a second cross-sectional structural schematic diagram of the ultra-high performance concrete anti-scouring and abrasion structure for bridges in an embodiment of the present application;

[0018] Figure 4 This is a third cross-sectional structural schematic diagram of the ultra-high performance concrete anti-scouring and abrasion structure for bridges in an embodiment of the present application;

[0019] Figure 5 This is a schematic diagram of the structure of the protective sleeve in the embodiment of the present application;

[0020] Figure 6 In the embodiment of this application Figure 1 The enlarged schematic diagram of point A in the middle;

[0021] Figure 7 In the embodiment of this application Figure 3 A magnified schematic diagram of point B in the middle.

[0022] In the figure: 1, pile; 2, protective sleeve; 21, socket; 22, plug rod; 3, clamp; 4, fixing block; 5, baffle; 6, support assembly; 61, first elastic support plate; 62, rotating rod; 63, second elastic support plate; 7, fixing ring; 8, rotating ring; 9, connecting plate; 10, threaded hole; 11, bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] Please refer to Figure 1-7 The ultra-high performance concrete anti-scour and abrasion structure of the bridge shown includes a pile column 1, and a plurality of protective sleeves 2 are sequentially sleeved on the outer peripheral surface of the pile column 1 from top to bottom, and the connection points of adjacent protective sleeves 2 are fixedly connected by clamps 3. A fixed block 4 is fixedly connected to the upper outer peripheral surface of the pile column 1, and the side of the fixed block 4 away from the pile column 1 is rotatably connected to a baffle 5 through a first rotating shaft and a first torsion spring. The width of the baffle 5 is not less than half of the outer diameter of the protective sleeve 2, and the bottom of the baffle 5 extends to the lowermost protective sleeve 2, and also includes a support assembly 6 arranged between the baffle 5 and the outer peripheral surface of the pile column 1.

[0026] refer to Figure 1 and 6The support assembly 6 is fixedly connected to multiple pairs of first elastic support plates 61 on the side of the baffle plate 5 close to the pile column 1 at equal distances from top to bottom. Each pair of first elastic support plates 61 is distributed in an inverted eight-shaped shape. The side of the first elastic support plate 61 away from the baffle plate 5 is rotatably connected to a rotating rod 62 through a second rotating shaft, and the rotating rod 62 is in conflict with the outer peripheral surface of the corresponding protective sleeve 2.

[0027] Specifically, when the baffle plate 5 is impacted by water flow, the first elastic support plate 61 and the rotating rod 62 will be tightly pressed against the outer peripheral surface of the protective sleeve 2, and each pair of two first elastic support plates 61 will open to both sides, thereby reducing the direct impact force of the water flow on the baffle plate 5 and the protective sleeve 2, effectively protecting the baffle plate 5 and the protective sleeve 2 from damage, so that the protective sleeve 2 can work normally for a long time to protect the safety of the pile 1.

[0028] refer to Figure 6 The support assembly 6 also includes a plurality of groups of second elastic support plates 63 equidistantly connected from top to bottom, each group of second elastic support plates 63 includes a plurality of pairs of second elastic support plates 63, each pair of second elastic support plates 63 is distributed in an inverted figure eight shape, and each group of second elastic support plates 63 is located between each pair of first elastic support plates 61, and the side of the second elastic support plate 63 away from the baffle plate 5 is rotatably connected to a rotating rod 62 through a second rotating shaft, and the rotating rod 62 can contact the outer peripheral surface of the corresponding protective sleeve 2.

[0029] Specifically, when the impact force of the water flow is large, multiple pairs of first elastic support plates 61 and multiple groups of second elastic support plates 63 will all participate in the support work of the baffle plate 5, and multiple rotating rods 62 will simultaneously contact the outer peripheral surface of the protective sleeve 2, thereby effectively reducing the pressure on the protective sleeve 2 and further protecting the safety of the protective sleeve 2. At the same time, the structure can resist large water flow impact forces, further improving the anti-scouring and abrasion protection effect of the pile column 1.

[0030] refer to Figure 5 The top surface of the protective sleeve 2 is provided with a plurality of holes 21 in a circular shape at equal angles, and the bottom surface of the protective sleeve 2 is provided with a plurality of plug rods 22 in a circular shape at equal angles. The plurality of plug rods 22 can be movably inserted into the plurality of holes 21 respectively.

[0031] Specifically, the connection stability between the protection sleeves 2 can be increased, thereby improving the protection effect on the pile column 1.

[0032] refer to Figure 1 , 2, 3, 4 and 7, a fixing ring 7 is fixedly sleeved on the outer circumference of the upper side of the pile column 1, a swivel 8 is rotatably sleeved on the outer circumference of the fixing ring 7, two connecting plates 9 are symmetrically fixedly connected to the inner wall of the swivel 8, a plurality of threaded holes 10 are opened on the top of the connecting plate 9 and the top of the fixing ring 7, the connecting plate 9 and the fixing ring 7 are fixedly connected together by bolts 11 and threaded holes 10, and two fixing blocks 4 are symmetrically fixedly connected to the outer circumference of the swivel 8.

[0033] Specifically, two baffles 5 can be symmetrically installed on each pile column 1, so that the staff can regularly rotate the swivel 8 to exchange the positions of the two baffles 5, so that the two baffles 5 can perform protection work alternately, thereby reducing the probability of damage to the baffles 5 due to fatigue, extending the protection time of the pile column 1, and greatly improving the reliability of the structure.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-high performance concrete anti-scouring and abrasion structure for a bridge, comprising a pile column (1), characterized in that: A plurality of protective sleeves (2) are sleeved sequentially on the outer peripheral surface of the pile column (1) from top to bottom, and adjacent protective sleeves (2) are fixedly connected at their connection points by means of a clamp (3). A fixing block (4) is fixedly connected to the outer peripheral surface of the upper side of the pile column (1), and a side of the fixing block (4) away from the pile column (1) is rotatably connected to a baffle plate (5) via a first rotating shaft and a first torsion spring. The width of the baffle plate (5) is not less than half of the outer diameter of the protective sleeve (2), and the bottom of the baffle plate (5) extends to the lowermost protective sleeve (2). The baffle plate (5) also includes a support assembly (6) arranged between the baffle plate (5) and the outer peripheral surface of the pile column (1).

2. The ultra-high performance concrete anti-scouring and abrasion structure for bridges according to claim 1 is characterized in that: The support assembly (6) is fixedly connected to a plurality of pairs of first elastic support plates (61) on the side of the baffle plate (5) close to the pile column (1) at equal distances from top to bottom, each pair of the first elastic support plates (61) is distributed in an inverted figure eight shape, and a rotating rod (62) is rotatably connected to the side of the first elastic support plate (61) away from the baffle plate (5) via a second rotating shaft, and the rotating rod (62) contacts the outer peripheral surface of the corresponding protective sleeve (2).

3. The ultra-high performance concrete anti-scouring and abrasion structure for bridges according to claim 2 is characterized in that: The support assembly (6) further comprises a plurality of groups of second elastic support plates (63) equidistantly connected from top to bottom, each group of the second elastic support plates (63) comprises a plurality of pairs of second elastic support plates (63), each pair of the second elastic support plates (63) is distributed in an inverted figure eight shape, and each group of the second elastic support plates (63) is located between each pair of the first elastic support plates (61), and the side of the second elastic support plate (63) away from the baffle plate (5) is rotatably connected to a rotating rod (62) via a second rotating shaft, and the rotating rod (62) can abut against the outer peripheral surface of the corresponding protective sleeve (2).

4. The ultra-high performance concrete anti-scouring and abrasion structure for bridges according to claim 3 is characterized in that: The top surface of the protective sleeve (2) is provided with a plurality of insertion holes (21) at equal angles in a ring shape, and the bottom surface of the protective sleeve (2) is provided with a plurality of insertion rods (22) at equal angles in a ring shape. The plurality of insertion rods (22) can be movably inserted into the plurality of insertion holes (21) respectively.

5. The ultra-high performance concrete anti-scouring and abrasion structure for bridges according to claim 4 is characterized in that: A fixing ring (7) is fixedly sleeved on the outer circumference of the upper side of the pile column (1), a rotating ring (8) is rotatably sleeved on the outer circumference of the fixing ring (7), two connecting plates (9) are symmetrically fixedly connected on the inner wall of the rotating ring (8), a plurality of threaded holes (10) are formed on the top of the connecting plate (9) and the top of the fixing ring (7), the connecting plate (9) and the fixing ring (7) are fixedly connected together by bolts (11) and the threaded holes (10), and two fixing blocks (4) are symmetrically fixedly connected on the outer circumference of the rotating ring (8).

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